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Three Sui mainnet halts in 48 hours traced to an upgrade bug by developers

The Sui Foundation's post-mortem reveals that recent mainnet halts were caused by a bug in the v1.72 upgrade, affecting address-balance features.

Infrastructure Source: CoinDesk: Bitcoin, Ethereum, Crypto News and Price Data Published: Jun 01, 2026 2 min read
What To Do

Investigating the bug and planning a fix to restore network reliability.

Risk Watch

Continued outages may affect user trust and network adoption.

Source Lens

This report references coindesk.com and maps it to Solana operator workflows.

suiblockchaininfrastructurenetworkupgradebugoutage

What Happened

The Sui mainnet experienced three significant halts within a short period, all linked to a bug introduced in the latest upgrade. This has raised concerns about the robustness of the network's recent changes.

Why It Matters For Operators

These outages highlight the risks associated with rapid upgrades in blockchain networks. Ensuring stability is crucial for user confidence and long-term adoption.

  • Rapid upgrades can introduce unforeseen issues.
  • Network stability is critical for user trust.
  • Thorough testing is essential before major releases.
  • Post-mortem analyses can help prevent future issues.

Execution Plan

  1. Conduct a thorough review of the upgrade process.
  2. Implement additional testing protocols for future releases.
  3. Communicate transparently with users about the issues.
  4. Develop a rollback plan for critical upgrades.

Risk Controls

  • Establish a dedicated team for upgrade oversight.
  • Increase testing phases before deployment.
  • Monitor network performance closely post-upgrade.
  • Create a user feedback loop for reporting issues.

FAQ

What caused the mainnet halts?

The halts were traced to a bug in the new address-balance feature from the v1.72 upgrade.

How is Sui addressing the issue?

The Sui Foundation is investigating the bug and planning a fix to enhance network reliability.

What can users expect moving forward?

Users can expect improved communication and more rigorous testing for future upgrades.

Next Steps